Botanical Description, Diversity Resources, Distribution and Present Ecological Status of Luisia Gaudichaud -A Horticulturally less known Epiphytic Orchid Species of Darjeeling

The present paper deals with four horticulturally less known Luisia Orchid species diversity resources, distribution and present ecological status in Darjeeling Himalaya of India. Of them, two are sparse, one is rare and another one is threatened status at present in study regions. This attempt is the first step to correct taxonomic identification to workout currently accepted botanical names with ecological status, voucher specimen numbers, habitat, altitudinal ranges, phenology and local and geographical distribution of Luisia species in the regions.